申请人:Hangzhou Dike Technologies Co., Ltd.
公开号:EP4001268A1
公开(公告)日:2022-05-25
The invention discloses a method for synthesizing N-substituted phenyl-5-hydroxymethyl-2-oxazolidinone, wherein the method comprises: reacting from raw materials, 3-R2-4-R1-aniline and epichlorohydrin, and allowing the resulting product to react under alkaline conditions in a CO2 atmosphere to obtain N-substituted phenyl-5-hydroxymethyl-2-oxazolidinone, wherein R1 is a morpholine group, a morpholin-3-one group or a piperazine group, and derivative groups thereof, and R2 is halogen, hydrogen or lower alkyl. The method provided by the invention has such advantages as few steps, simple operation, cheap and easily available raw materials, mild reaction conditions, and high product yield, and is especially suitable for industrial production of antibiotic linezolid intermediates and antithrombotic drug rivaroxaban intermediates.
本发明公开了一种合成N-取代苯基-5-羟甲基-2-恶唑烷酮的方法,其中该方法包括:以原料3-R2-4-R1-苯胺和环氧氯丙烷为原料进行反应,并使得到的产物在二氧化碳气氛中的碱性条件下反应,得到N-取代苯基-5-羟甲基-2-恶唑烷酮,其中R1为吗啉基团、吗啉-3-酮基团或哌嗪基团及其衍生物基团,R2为卤素、氢或低级烷基。本发明提供的方法具有步骤少、操作简单、原料廉价易得、反应条件温和、产品收率高等优点,特别适用于抗生素利奈唑胺中间体和抗血栓药物利伐沙班中间体的工业化生产。